Help with PHP script error

Need help with PHP script on one of my clients sites. The form allows the site visitor to log in and view up to 2 pictures of themselves. The error is coming into play when the Admin enters the form information. It is coming up with the follwoing error message:

Hi, I'm a freelance web developer and PHP/MySQL programmer with over 5 years experience. I would like to help you fix this script, please PM me and let me know of the details if you want me to help.
Thanks for takinMai multe